devkit doesn't build with OCaml 4.03.0 onwards (duplicate exception definitions)

[Jeremy Yallop]

The error is as follows:

# File "devkit_ragel.ml", line 350, characters 10-20:
# Error: Multiple definition of the extension constructor name Goto_match.
#        Names must be unique in a given structure or signature.
# Command exited with code 2.

[Jeremy Yallop]

I've added a constraint in opam-repository: ocaml/opam-repository#8247

[ygrek]

Thanks for the heads up!
Fixed in new release - ocaml/opam-repository#8295